Dec 04 10:12:03.165 INFO checking sikinmettugi/wordfreq-rs against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:12:03.165 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 10:12:03.704 INFO [stdout] ebcdeeb5d48a79e27a2e268b2539b0c7854bdc63b5036e6f41a0c4efca074034
Dec 04 10:12:03.706 INFO running `"docker" "start" "-a" "ebcdeeb5d48a79e27a2e268b2539b0c7854bdc63b5036e6f41a0c4efca074034"`
Dec 04 10:12:05.997 INFO [stderr] usermod: no changes
Dec 04 10:12:06.059 INFO [stderr]     Checking wordfreq-rs v0.1.0 (/source)
Dec 04 10:12:06.287 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 04 10:12:06.287 INFO [stderr]   --> src/main.rs:13:1
Dec 04 10:12:06.287 INFO [stderr]    |
Dec 04 10:12:06.287 INFO [stderr] 13 | struct WordCount {
Dec 04 10:12:06.287 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 10:12:06.287 INFO [stderr]    |
Dec 04 10:12:06.287 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 10:12:06.287 INFO [stderr] 
Dec 04 10:12:06.287 INFO [stderr] warning: method is never used: `get_count`
Dec 04 10:12:06.287 INFO [stderr]   --> src/main.rs:19:5
Dec 04 10:12:06.287 INFO [stderr]    |
Dec 04 10:12:06.287 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 04 10:12:06.287 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.287 INFO [stderr] 
Dec 04 10:12:06.287 INFO [stderr] warning: method is never used: `increment`
Dec 04 10:12:06.287 INFO [stderr]   --> src/main.rs:23:5
Dec 04 10:12:06.287 INFO [stderr]    |
Dec 04 10:12:06.287 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 04 10:12:06.287 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.287 INFO [stderr] 
Dec 04 10:12:06.475 INFO [stderr] warning: struct is never constructed: `WordCount`
Dec 04 10:12:06.475 INFO [stderr]   --> src/main.rs:13:1
Dec 04 10:12:06.475 INFO [stderr]    |
Dec 04 10:12:06.475 INFO [stderr] 13 | struct WordCount {
Dec 04 10:12:06.475 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 04 10:12:06.475 INFO [stderr]    |
Dec 04 10:12:06.475 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 10:12:06.475 INFO [stderr] 
Dec 04 10:12:06.475 INFO [stderr] warning: method is never used: `get_count`
Dec 04 10:12:06.475 INFO [stderr]   --> src/main.rs:19:5
Dec 04 10:12:06.475 INFO [stderr]    |
Dec 04 10:12:06.475 INFO [stderr] 19 |     fn get_count(&self) -> u32 {
Dec 04 10:12:06.475 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.475 INFO [stderr] 
Dec 04 10:12:06.475 INFO [stderr] warning: method is never used: `increment`
Dec 04 10:12:06.475 INFO [stderr]   --> src/main.rs:23:5
Dec 04 10:12:06.475 INFO [stderr]    |
Dec 04 10:12:06.475 INFO [stderr] 23 |     fn increment(&mut self) {
Dec 04 10:12:06.475 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 10:12:06.475 INFO [stderr] 
Dec 04 10:12:06.489 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
Dec 04 10:12:06.493 INFO [stderr] su: No module specific data is present
Dec 04 10:12:07.347 INFO running `"docker" "inspect" "ebcdeeb5d48a79e27a2e268b2539b0c7854bdc63b5036e6f41a0c4efca074034"`
Dec 04 10:12:07.605 INFO running `"docker" "rm" "-f" "ebcdeeb5d48a79e27a2e268b2539b0c7854bdc63b5036e6f41a0c4efca074034"`
Dec 04 10:12:07.922 INFO [stdout] ebcdeeb5d48a79e27a2e268b2539b0c7854bdc63b5036e6f41a0c4efca074034